CN215264810U - Audio playing device - Google Patents

Abstract

The utility model relates to a multimedia device technical field provides an audio playback device, include: the voice-based fingerprint identification device comprises a fingerprint identification chip, an audio power amplifier, a noise reduction voice awakening module, an encryption chip and a main control chip, wherein the main control chip is respectively connected with the fingerprint identification chip, the audio power amplifier, the noise reduction voice awakening module and the encryption chip, and the audio power amplifier is also connected with the noise reduction voice awakening module. Implement the utility model discloses a scheme can carry out comprehensive, effectual safety protection to audio playback equipment.

Description

Audio playing device

Technical Field

The utility model relates to a multimedia device technical field especially provides an audio playback device.

Background

The audio playing equipment such as earphones and sound equipment has private property, and generally, only an owner has the authority to use the audio playing equipment, and the audio playing equipment is less shared with other people for use. In addition, the price of the equipment such as earphones, sound equipment and the like can reach tens of thousands, even tens of thousands yuan, and the safety guarantee of the high-price audio playing equipment is also a real requirement. However, the prior art lacks a comprehensive and effective safety protection means for audio playing equipment such as earphones, sound equipment and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an audio playing device aims at solving current problem, and prior art lacks comprehensive, effectual safety protection means to audio playback equipment promptly.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides an audio play device, audio play device includes fingerprint identification chip, audio frequency amplifirer, falls the pronunciation of making an uproar and awaken the module, encrypt chip and main control chip, main control chip respectively with fingerprint identification chip, audio frequency amplifirer, fall the pronunciation of making an uproar and awaken the module and encrypt the chip connection, the audio frequency amplifirer still with it connects to fall the pronunciation of making an uproar and awaken the module.

In an embodiment, the audio playing device further includes an indicator light and an indicator light driver, and the indicator light, the indicator light driver and the main control chip are sequentially connected.

In an embodiment, the audio playing device further includes a storage battery, and the storage battery is connected to the main control chip, the audio power amplifier, and the indicator light driver, respectively.

In an embodiment, the audio playing device further includes a charging chip, an overvoltage protection chip and a charging interface, and the charging interface, the overvoltage protection chip, the charging chip, the storage battery and the main control chip are sequentially connected.

In an embodiment, the audio playing device further includes a bluetooth antenna, and the bluetooth antenna is connected to the main control chip.

In an embodiment, the audio playing device further includes an external circuit interface, and the external circuit interface is connected to the main control chip.

In an embodiment, the audio playing apparatus further includes an operation key group, and the operation key group is connected to the main control chip.

In an embodiment, the audio playing device further includes a first microphone and a second microphone, the first microphone and the second microphone are respectively installed at two sides of the noise reduction voice awakening module, and the first microphone and the second microphone are respectively connected with the noise reduction voice awakening module.

In an embodiment, the audio playing device further includes a first sound generator and a second sound generator, and the first sound generator and the second sound generator are respectively connected to the audio power amplifier.

In an embodiment, the audio playing device further includes a crystal oscillator, and the crystal oscillator is connected to the main control chip.

The utility model has the advantages that:

the utility model provides a pair of audio playing device can carry out comprehensive, effectual safety protection to audio playback equipment.

Firstly, the fingerprint identification chip is connected with the main control chip, and whether the main control chip passes through the result control earphone of fingerprint identification chip and opens, if open, can forward audio signal to the audio power amplifier and carry out the power amplifier and handle, and then let audio playback device broadcast sound, otherwise do not forward, audio playback device just can't use like this. Secondly, the encryption chip encrypts the fingerprint information, and the difficulty of breaking the fingerprint password is increased. And thirdly, the noise reduction voice awakening module can directly open the earphone by identifying the voiceprint of the person with authority, so that a substitute unlocking mode applicable to scenes such as gloves worn in winter is provided, and the convenience is high while the safety of the audio playing device is increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a block diagram of an audio playing apparatus according to an embodiment of the present invention.

Fig. 2 is a block diagram of an audio playing apparatus according to another embodiment of the present invention.

Fig. 3 is a block diagram of an audio playing apparatus according to another embodiment of the present invention.

Fig. 4 is a block diagram of an audio playing apparatus according to another embodiment of the present invention.

Fig. 5 is a block diagram of an audio playing apparatus according to another embodiment of the present invention.

Fig. 6 is a block diagram of an audio playing apparatus according to another embodiment of the present invention.

Wherein, in the figures, the respective reference numerals: 100. an audio playing device; 101. a main control chip; 102. a fingerprint identification chip; 103. encrypting the chip; 104. an audio power amplifier; 105. a noise reduction voice wake-up module; 106. an indicator light; 107. an indicator light driver; 108. a storage battery; 109. a charging chip; 110. an overvoltage protection chip; 111. a charging interface; 112. a first microphone; 113. a second microphone; 114. a first sound generator; 115. a second sounder.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should also be understood that the term "and/or" as used in the specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In order to explain the technical means of the present invention, the following examples are given below.

Referring to fig. 1, an audio playing apparatus 100 according to an embodiment of the present invention includes: the voice wake-up device comprises a fingerprint identification chip 102, an audio power amplifier 104, a noise reduction voice wake-up module 105, an encryption chip 103 and a main control chip 101, wherein the main control chip 101 is respectively connected with the fingerprint identification chip 102, the audio power amplifier 104, the noise reduction voice wake-up module 105 and the encryption chip 103, and the audio power amplifier 104 is further connected with the noise reduction voice wake-up module 105.

In this embodiment, the fingerprint identification chip 102 is configured to identify fingerprint information input by a user, match the fingerprint information with fingerprint information that is pre-entered, and return a result to the main control chip 101.

In some embodiments, when the fingerprint identification chip 102 identifies that the fingerprint information input by the user is successfully matched with the fingerprint information pre-entered, it indicates that the user using the audio playback device 100 is a user authorized to use the audio playback device 100, so the fingerprint identification chip 102 returns an interrupt signal to the main control chip 101. The interrupt signal is used to describe that the fingerprint information input by the fingerprint identification chip 102 for identifying the user is successfully matched with the fingerprint information input in advance, so that when the main control chip 101 receives the interrupt signal sent by the fingerprint identification chip 102, it can be known through the interrupt signal that the fingerprint information of the user identified by the fingerprint identification chip 102 is consistent with the fingerprint information input in advance, that is, the user currently inputting the fingerprint information to the audio playback device 100 is the user having authority to use the audio playback device 100.

The noise reduction voice awakening module 105 is used for identifying whether voiceprint information of a user is consistent with voiceprint information recorded in advance or not, and returning a voiceprint identification result to the main control chip 101, so that the audio playing device 100 is controlled to be opened through the main control chip 101 according to the voiceprint identification result, a substitute unlocking mode applicable to scenes such as wearing gloves in winter is provided, the safety of the audio playing device 100 is improved, and meanwhile the convenience of the audio playing device 100 can be improved. In addition, the noise reduction voice wake-up module 105 may also perform noise reduction processing on the audio played by the audio power amplifier 104.

In some embodiments, when the noise reduction voice wake-up module 105 successfully recognizes the voiceprint of the user, the noise reduction voice wake-up module 105 returns an interrupt signal to the main control chip 101. When the main control chip 101 receives the interrupt signal returned by the noise reduction voice wake-up module 105, it controls the audio playing apparatus 100 to start. For example, when the noise reduction voice wake-up module 105 recognizes that the voiceprint information input by the user is consistent with the pre-recorded voiceprint information, an interrupt signal is returned to the main control chip 101 through the int interface of the noise reduction voice wake-up module 105, and then the main control chip 101 determines that the voiceprint recognition in the noise reduction voice wake-up module 105 is successful according to the interrupt signal, so that the main control chip 101 controls the audio playing apparatus 100 to be turned on or turned off. In a specific scenario, the noise reduction voice wake-up module 105 includes a noise reduction voice wake-up chip, for example, a chip with model number CX 20921.

The main control chip 101 is configured to control whether the audio playing device 100 is turned on through information returned by the fingerprint identification chip 102 or the noise reduction voice wake-up module 105, and if the audio playing device 100 is turned on, the audio signal may be forwarded to the audio power amplifier 104 for power amplification processing, so that the audio playing device 100 plays sound. It can be understood that, when the main control chip 101 determines that the audio playing device 100 needs to be controlled to be turned on according to the result of the fingerprint identification chip 102, that is, the user who inputs the fingerprint has the right to use the audio playing device 100, the main control chip 101 automatically turns on the audio playing device 100 according to the result of the fingerprint identification chip 102. In a specific scenario, the main control chip 101 may be a chip with model number BES 2300.

In some embodiments, when the fingerprint identification chip 102 successfully identifies the fingerprint of the user, the fingerprint identification chip 102 returns an interrupt result to the main control chip 101. When the main control chip 101 receives the interrupt result returned by the fingerprint identification chip 102, it controls the audio playing apparatus 100 to start. For example, when the fingerprint information input by the user is identified by the fingerprint identification chip 102 to be consistent with the fingerprint information pre-recorded, an interrupt signal is returned to the main control chip 101 through the interrupt output interface of the fingerprint identification chip 102, and the main control chip 101 determines that the fingerprint identification in the fingerprint identification chip 102 is successful according to the interrupt signal, so that the main control chip 101 controls the audio playing device 100 to be turned on or turned off.

The audio amplifier 104 is configured to play the audio signal acquired from the main control chip 101. For example, the pre-stored prompting sound information for the audio playing apparatus 100 to start or stop, or the audio information acquired by the audio playing apparatus 100 from other devices.

The encryption chip 103 is used for encrypting the pre-entered user fingerprint information or voiceprint information. For example, after a user purchases an audio playing device 100, before using the audio playing device 100, the user enters his/her fingerprint and/or voiceprint into the audio playing device 100 in order to uniquely identify the user using the audio playing device 100, and when the audio playing device 100 receives the fingerprint information or voiceprint information entered by the user, the fingerprint information or voiceprint information entered by the user is encrypted by using the encryption chip 103. Where the term "and/or" refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Therefore, the fingerprint identification chip 102 in the audio playing device 100 is connected to the main control chip 101, and the main control chip 101 controls whether the earphone is turned on or not according to the result of the fingerprint identification chip 102, and if the earphone is turned on, the audio signal can be forwarded to the audio power amplifier 104 for power amplification processing, so that the audio playing device 100 plays sound, otherwise, the audio signal is not forwarded, and thus the audio playing device 100 cannot be used. In addition, the fingerprint information pre-recorded into the audio playing device 100 can be encrypted by the encryption chip 103, so that the difficulty of breaking the fingerprint password is increased. The audio playing device 100 can also recognize the voiceprint of the user of the audio playing device 100 through the noise reduction voice wake-up module 105 to directly open the earphone, so that a substitute unlocking mode applicable to scenes such as wearing gloves in winter is provided, the security of the audio playing device 100 is improved, and the convenience of the audio playing device 100 can be improved.

As an example of the embodiment, the fingerprint identification chip 102 is connected to the first interrupt input interface and the first I2C interface of the main control chip 101 through an interrupt output interface and an integrated circuit (I2C) interface, respectively. The main control chip 101 may send the fingerprint information entered in advance to the fingerprint identification chip 102 through the first I2C interface to the fingerprint identification chip 102. When the user uses the audio playing device 100 and the fingerprint identification chip 102 acquires the fingerprint information of the user, the acquired fingerprint information of the user may be matched with the fingerprint information that is input in advance to obtain a matching result, and the matching result is fed back to the main control chip 101 through the interrupt output interface of the fingerprint identification chip 102, so that the main control chip 101 can start the audio playing device 100 or close the audio playing device 100 according to the feedback result.

The encryption chip 103 interfaces with a second I2C of the master chip 101 through an I2C interface. The main control chip 101 may send the fingerprint information recorded in advance to the encryption chip 103 through the second I2C interface, so that the encryption chip 103 encrypts the fingerprint information recorded in advance, and then returns the encrypted fingerprint information to the main control chip 101.

The audio amplifier 104 is connected to the third I2C interface and the I2S interface of the main control chip 101 through an I2C interface and an inter-integrated circuit (I2S) interface, respectively.

The noise reduction voice wake-up module 105 is connected with the second interrupt input interface and the I2S interface of the main control chip 101 through the interrupt output interface and the I2S interface.

The audio power amplifier 104 and the noise reduction voice wake-up module 105 are connected through an I2S interface.

The I2C interface is a bi-directional synchronous serial bus that includes a serial data line (SDA) and a Serial Clock Line (SCL).

The I2S interface may be used for audio communication.

In one embodiment, as shown in fig. 2, the audio playing apparatus 100 further includes: the audio playing device 100 further includes an indicator light 106 and an indicator light driver 107, and the indicator light 106, the indicator light driver 107 and the main control chip 101 are sequentially connected.

In this embodiment, when the main control chip 101 controls whether the audio playing device 100 is turned on through the returned information of the fingerprint identification chip 102 or the noise reduction voice wake-up module 105, if so, the main control chip 101 sends a signal for driving the turn-on indicator lamp 106 to the indicator lamp driver 107, so that the indicator lamp driver 107 drives the indicator lamp 106 according to the signal.

As a specific example of the present embodiment, the indicator light driver 107 is connected to the fourth I2C interface of the main control chip 101 through an I2C interface.

In a particular scenario, the indicator light driver 107 may employ an indicator light driver 107 model ISSI 3208A.

Referring to fig. 3, in an embodiment, the audio playing apparatus 100 further includes a storage battery 108, and the storage battery 108 is respectively connected to the main control chip 101, the audio power amplifier 104, and the indicator light driver 107.

In this embodiment, the storage battery 108 is used for supplying power to the main control chip 101, the audio power amplifier 104 and the indicator light driver 107.

Referring to fig. 4, in an embodiment, the audio playing device 100 further includes a charging chip 109, an overvoltage protection chip 110, and a charging interface 111, where the charging interface 111, the overvoltage protection chip 110, the charging chip 109, the storage battery 108, and the main control chip 101 are sequentially connected.

In this embodiment, the charging interface 111 may be a Universal Serial Bus (USB) interface.

The USB interface is an interface which accords with the USB standard specification, and specifically can be a Mini USB interface, a Micro USB interface, a USB Type C interface and the like. The USB interface may be used to connect a charger to charge the battery 108.

The overvoltage protection chip 110 is used to disconnect the power supply or reduce the charging voltage when the voltage of the charging line exceeds a preset value. In a specific example, the overvoltage protection chip 110 can be an overvoltage protection chip 110 with a model LTC4362 or MST 9611.

The charging chip 109 is used to realize charging management when charging the battery 108. In a specific example, the charging chip 109 may adopt the charging chip 109 with model number SL1053, CN3052A, M1056 or TP 5100.

Referring to fig. 5, in an embodiment, the audio playing apparatus 100 further includes a first microphone 112 and a second microphone 113, the first microphone 112 and the second microphone 113 are respectively installed at two sides of the noise reduction voice wake-up module 105, and the first microphone 112 and the second microphone 113 are respectively connected to the noise reduction voice wake-up module 105.

In this embodiment, the first microphone 112 and/or the second microphone 113 are used for collecting the voice of the user using the audio playing apparatus 100, and transmitting the voice to the noise reduction voice wake-up module 105, so as to process the received voice information through the noise reduction voice wake-up module 105.

For example, when the user uses the audio playback device 100 and says "power on," the user's voice is captured through the first microphone 112 and/or the second microphone 113.

Referring to fig. 6, in an embodiment, the audio playback device 100 further includes a first sound generator 114 and a second sound generator 115, and the first sound generator 114 and the second sound generator 115 are respectively connected to the audio power amplifier 104.

In this embodiment, the audio amplifier 104 controls the first sound generator 114 and/or the second sound generator 115 to play sound to the environment where the audio playing apparatus 100 is located according to the audio signal received from the main control chip 101.

For example, after the audio amplifier 104 receives the audio signal describing "successful power on" from the main control chip 101, the audio amplifier 104 performs power amplification processing on the audio signal, and controls the first sound generator 114 and/or the second sound generator 115 to play the "successful power on" sound to the environment where the audio playing apparatus 100 is located according to the audio signal after power amplification processing, so that the user can know the operation state of the audio playing apparatus 100.

In an embodiment, the audio playing apparatus 100 further includes a crystal oscillator, and the crystal oscillator is connected to the main control chip 101.

In the present embodiment, the crystal oscillator provides a clock signal for the main control chip 101.

In an embodiment, the audio playing apparatus 100 further includes a bluetooth antenna, and the bluetooth antenna is connected to the main control chip 101.

In this embodiment, the bluetooth antenna is a communication component for transmitting or receiving bluetooth signals. The bluetooth antenna is connected to a bluetooth signal interface of the main control chip 101, and is configured to send a signal in the main control chip 101 to an electronic device outside the audio playing apparatus 100, or receive a bluetooth signal sent by the electronic device outside the audio playing apparatus 100 to the audio playing apparatus 100.

The Bluetooth antenna can be one of a ceramic antenna, an IPEX interface external antenna or a PCB antenna.

In an embodiment, the audio playing apparatus 100 further includes an external circuit interface, and the external circuit interface is connected to the main control chip 101.

In the present embodiment, the external line interface is used for connecting the audio playback apparatus 100 with other electronic devices. For example, when the external line interface is an earphone interface, the audio playing apparatus 100 can be connected to a mobile phone, a computer or a wearable device through the earphone interface, so that the audio playing apparatus 100 receives and plays the audio information transmitted from the electronic device.

In some embodiments, the external line interface may be one of a USB interface, a 3.5mm headset interface, or a 2.5mm headset interface.

In an embodiment, the audio playing apparatus 100 further includes an operation key set, and the operation key set is connected to the main control chip 101.

In this embodiment, the operation key group includes at least one key. When the operation key group comprises more than two keys, each key corresponds to different key instructions or is combined to obtain different key instructions. It is understood that when the user operates the key, an instruction to control the progress of the played audio or an instruction to switch the played audio may be triggered. Such as pausing audio played by the audio playback device 100, or fast forwarding audio played by the audio playback device 100, etc.

The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides an audio playing device, its characterized in that, audio playing device includes fingerprint identification chip, audio power amplifier, falls the pronunciation of making an uproar and awaken up module, encryption chip and main control chip, main control chip respectively with fingerprint identification chip, audio power amplifier, fall the pronunciation of making an uproar and awaken up module and encryption chip connection, the audio power amplifier still with fall the pronunciation of making an uproar and awaken up the module connection.

2. The audio playback device of claim 1, further comprising an indicator light and an indicator light driver, wherein the indicator light, the indicator light driver and the main control chip are sequentially connected.

3. The audio playing device according to claim 2, further comprising a storage battery, wherein the storage battery is connected to the main control chip, the audio power amplifier and the indicator light driver respectively.

4. The audio playing device according to claim 3, wherein the audio playing device further comprises a charging chip, an overvoltage protection chip and a charging interface, and the charging interface, the overvoltage protection chip, the charging chip, the storage battery and the main control chip are sequentially connected.

5. The audio playback device of claim 1, further comprising a bluetooth antenna, wherein the bluetooth antenna is connected to the main control chip.

6. The audio playback device of claim 1, further comprising an external circuit interface, wherein the external circuit interface is connected to the main control chip.

7. The audio playing device according to claim 1, further comprising an operation key set, wherein the operation key set is connected to the main control chip.

8. The audio playback device of claim 1, further comprising a first microphone and a second microphone, wherein the first microphone and the second microphone are respectively installed at two sides of the noise reduction voice wake-up module, and the first microphone and the second microphone are respectively connected to the noise reduction voice wake-up module.

9. The audio playback device of claim 1, further comprising a first sound generator and a second sound generator, wherein the first sound generator and the second sound generator are respectively connected to the audio power amplifier.

10. The audio playback device according to any one of claims 1 to 9, further comprising a crystal oscillator, wherein the crystal oscillator is connected to the main control chip.

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